Rule of thumb for me is after 1 buyin,since I've noticed I'll lose the 2nd buyin to, if I keep playing, I've even gone to another site just thinking it was just a bad beat but just seems to follow me, so I stop playing an try to think of what I'm doing wrong, usually I'm just playing to aggressive,then if I still feel like playing I just hit the play tables , there I can be as aggressive as I want lol!!!